Stretchable and Leakage‐Free Liquid Metal Networks for Thermal Management

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 19, 2025

Abstract Stretchable thermally conductive materials (TCMs) are highly desirable for efficient thermal management in wearable electronics. However, yielding stretchable TCMs that can simultaneously achieve superior conductivity (TC) and high stretchability remains challenging owing to the contradiction between their mechanical behaviors. Herein, design of a bi‐continuous structure enables creation composites by incorporating liquid metal (LM) within thermoplastic urethane (TPU) framework, is reported. The continuous TPU framework acts as load‐bearing skeleton ensure stretchability, while LM forms 3D network, providing high‐speed channels heat conduction. This innovative endows resultant composite with out‐plane TC (4.16 W (m K) −1 ), outstanding (606%), extremely stable TC, retention 92% at 100% strain after 10 000 stretching‐releasing cycles. also exhibits excellent leakage‐free behavior, without any leakage large 400% under pressure 500 kPa. These remarkable comprehensive properties make it promising TCM

Language: Английский

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Flexible multifunctional MXene@Carbon nano tube (CNTs)/Cotton fabric inspired by tentacles of caterpillar for electromagnetic shielding, pressure sensing and solar heating

Journal of Industrial and Engineering Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

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Enhanced mechanical and electromagnetic shielding performance of MXene/cellulose nanocrystals flexible film

Composites Communications, Journal Year: 2025, Volume and Issue: unknown, P. 102292 - 102292

Published: Jan. 1, 2025

Language: Английский

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Based on electrostatic adsorption constructing neural network-like structure of BNNS-OH@CNF composite films with excellent thermal management and electrical insulation performance

Composites Part B Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 112197 - 112197

Published: Feb. 1, 2025

Language: Английский

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Enhancing thermal conductivity, electromagnetic interference shielding, and joule heating in polyether ether ketone composites using three-dimensional scaly carbon fibre structures and structural optimisation

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160941 - 160941

Published: Feb. 1, 2025

Language: Английский

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Ultra‐Compact MXene/Alginate/PVA Composite Fibers by Intercalation and Chelation for Enhanced Flame Retardancy and Energy Harvesting

Small, Journal Year: 2025, Volume and Issue: unknown

Published: March 25, 2025

MXene fibers with electro-conductivity and electrochemical properties have drawn growing research interest for its promising applications in wearable electronics, flexible electrodes, smart textiles. However, producing high strength keeps challenging because loose sheets are hard to compact tightly due electrostatic repulsion. Herein, ultra-compact MXene-based produced by intercalating alginate polyvinyl alcohol (PVA) layers into nanosheets chelating via metal ions (i.e., Ca2+). The hydrogen ionic bond beneficial decrease the interplanar spacing, which improves tensile strength. These result low porosity (0.2 vol%) a orientation factor of 0.877 exhibiting electrical conductivity (1006 S cm‒1). In addition, flame retardancy is enhanced without smoldering owing synergistic effect ions. Moreover, these electromagnetic interference shielding, mechanical stability, acid, alkali-resistant properties, photo-thermal can be achieved scale production. This strategy paves way continuous production functional fibers, applicable retardant fabric, wireless communication, energy harvesting,

Language: Английский

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Liquid Metal/Elastomer Composites with Strain Invariant Electromagnetic Shielding

Composites Communications, Journal Year: 2025, Volume and Issue: unknown, P. 102364 - 102364

Published: March 1, 2025

Language: Английский

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Electromagnetic bilayer composite film: Cocoa-tree-like FL and spiky-ball-like CN structures for superior electromagnetic shielding, thermal management, and strain sensing performance

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162638 - 162638

Published: April 1, 2025

Language: Английский

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Electrostatic interaction-inspired textiles based on MXene decoration for superior electromagnetic interference shielding, infrared thermal camouflage, and fire proofing

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2025, Volume and Issue: 718, P. 136934 - 136934

Published: April 15, 2025

Language: Английский

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Cellulose Nanocrystal Stabilized Liquid Metal Pickering Emulsion as Photothermal and Conductive Direct‐Writing Ink

Small, Journal Year: 2025, Volume and Issue: unknown

Published: April 22, 2025

Abstract Gallium‐based liquid metal (LM) has attracted great attention for constructing flexible electronic devices due to its excellent deformability and electrical conductivity. However, large surface tension makes it difficult be uniformly dispersed in polymers, which severely limits wide applications. Hence, a surfactant‐free approach is proposed prepare stable LM microspheres against precipitation coalesce by facile ultrasonication via cellulose nanocrystal (CNC) stabilized LM‐in‐water Pickering emulsion (PE), where CNCs are employed as emulsifiers their partial wettability with both water phases, strong electrostatic adsorption hydrogen bonding interactions LM. So far, reports about PE CNC‐stabilized inorganic material still rare. CNC/LM direct‐writing inks on various substrates delicate patterns. The pristine patterns show photothermal conversion localized plasma resonance effect of microspheres. After activation friction sintering, the highly electric conductive (1666.7 S m −1 ) formation connection. activated also displayed Joule heating (83.2 °C at 0.9 V) electromagnetic interference (EMI) shielding ability (585.7 dB mm X‐band range.

Language: Английский

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